Documentation Audit

<!-- ABOUTME: Documentation audit skill for verifying claims against codebase -->

<!-- ABOUTME: Uses two-pass extraction with pattern expansion for comprehensive detection -->

Documentation Audit

Systematically verify claims in documentation against the actual codebase using a two-pass approach.

Overview

Core principle: Low recall is worse than false positives—missed claims stay invisible.

Two-pass process:

• Pass 1: Extract and verify claims directly from docs
• Pass 2A: Expand patterns from false claims to find similar issues
• Pass 2B: Compare codebase inventory vs documented items (gap detection)

Quick Start

• Identify target docs (user-facing only, skip plans/, audits/)
• Note current git commit for report header
• Run Pass 1 extraction using parallel agents (one per doc)
• Analyze false claims for patterns
• Run Pass 2 expansion searches
• Generate docs/audits/AUDIT_REPORT_YYYY-MM-DD.md

Claim Types

| Type | Example | Verification |

|------|---------|--------------|

| file_ref | scripts/foo.py | File exists? |

| config_default | "defaults to 'AI Radio'" | Check schema/code |

| env_var | STATION_NAME | In .env.example + code? |

| cli_command | --normalize flag | Script supports it? |

| behavior | "runs every 2 minutes" | Check timers/code |

Verification confidence:

• Tier 1 (auto): file_ref, config_default, env_var, cli_command
• Tier 2 (semi-auto): symbol_ref, version_req
• Tier 3 (human review): behavior, constraint

Pass 2 Pattern Expansion

After Pass 1, analyze false claims and search for similar patterns:

Dead script found: diagnose_track_selection.py
  → Search: all script references → Found 8 more dead scripts

Wrong interval: "every 10 seconds"
  → Search: "every \d+ (seconds?|minutes?)" → Found 3 more

Wrong service name: ai-radio-break-gen.service
  → Search: service/timer names → Found naming inconsistencies

Common patterns to always check:

• Dead scripts: scripts/*.py references
• Timer intervals: every \d+ (seconds?|minutes?)
• Service names: ai-radio-*.service, *.timer
• Config vars: RADIO_* environment variables
• CLI flags: --flag patterns in bash blocks

Output Format

Generate docs/audits/AUDIT_REPORT_YYYY-MM-DD.md:

# Documentation Audit Report
Generated: YYYY-MM-DD | Commit: abc123

## Executive Summary
| Metric | Count |
|--------|-------|
| Documents scanned | 12 |
| Claims verified | ~180 |
| Verified TRUE | ~145 (81%) |
| **Verified FALSE** | **31 (17%)** |

## False Claims Requiring Fixes
### CONFIGURATION.md
| Line | Claim | Reality | Fix |
|------|-------|---------|-----|
| 135 | `claude-sonnet-4-5` | Actual: `claude-3-5-sonnet-latest` | Update |

## Pattern Summary
| Pattern | Count | Root Cause |
|---------|-------|------------|
| Dead scripts | 9 | Scripts deleted, docs not updated |

## Human Review Queue
- [ ] Line 436: behavior claim needs verification

Detailed References

For execution checklist and anti-patterns: checklist.md

For claim extraction patterns: extraction-patterns.md